Skip to main content Skip to footer
Save up to 25% on guitars, drums, keys, pro audio and more Shop Now
Top Rated

Open Box Boss TU-12EX Chromatic Tuner for Guitar & Bass

Item #: 
580382004000000
  • Write a Review
Product Description:

This successor to the legendary TU-12 provides BOSS' famous needle/LED indicators for fast, accurate tuning. Other features include Flat Tuning of up to six half steps, ACCU-PITCH with an audible beep, a reference tone, a built-in microphone for acoustic instruments, and battery-saving Auto-Off.

In Stock & Ready To Ship

  • Protect Your Gear
  • Free Shipping
  • Easy Returns
Gear returned in mint condition. If you're looking for a virtually new instrument in possibly less-than-perfect packaging, this is a great value.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
Gear returned in great condition, with only minor signs of use, such as slight scuffs or pick marks. It looks and plays like new and may be considered an equivalent to display units found in retail stores.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
Open Box Price: $90.99
    Warranty Options
Add to List
Ship to Store: Available in: 3-7 Days (estimated)
Fairfax, VA
View More Stores For Availability Store Information


,
SUN:11AM-7PM
MON-FRI:10AM-9PM
SAT:10AM-8PM
Have Questions?
Call our experts for product info and phone-only specials.
866-498-7882
Click here to Chat Now
Overview

This successor to the legendary TU-12 provides BOSS' famous needle/LED indicators for fast, accurate tuning. Other features include Flat Tuning of up to six half steps, ACCU-PITCH with an audible beep, a reference tone, a built-in microphone for acoustic instruments, and battery-saving Auto-Off.

Features

  • Needle/LED indicators for fast, accurate tuning
  • Flat Tuning of up to six half steps
  • ACCU-PITCH with an audible beep
  • A reference tone
  • A built-in microphone for acoustic instruments
  • Battery-saving Auto-Off
Specifications
  • Tuning Range: E0 (20.6 Hz) to C8 (4,186.0 Hz)
  • Reference Pitch: A4 (438 to 445 Hz)
  • Tuning Accuracy: ± 1 cent
  • Power Supply: Dry battery R03 (carbon) or LR03 (alkaline); (AAA) type x 2; DC 3V, AC adaptor DC 9V (PSA series; optional)
  • Current Draw: 12 mA
  • Expected battery life under continuous use (carbon): Approximately 15 hours (this figure will vary depending on the actual conditions of use)
  • Accessories: Dry battery (R03 (AAA) type) x 2 (carbon), piezo microphone, Owner's Manual, soft case, holder, leaflet ("Using the Unit Safely" and "Important Notes"), information
  • Size and Weight (including batteries)
    • Width: 5-13/16" (148 mm)
    • Depth: 2-1/8" (54 mm)
    • Height: 1" (24 mm)
    • Weight: 0 lb. 5 oz. (0.1 kg)
    Pro Coverage

    Guitar Center's Pro Coverage
    Pro Coverage gives you added warranty protection for your gear. Stepping in where the manufacturer's "normal wear and tear" coverage ends, our Pro Coverage program offers you upgraded coverage if your product ever fails Click To Read More About This Product.

    Pro Coverage includes
    • Accidental damage protection
    • Expedited repair or replacement
    • Free shipping (for returns or repairs)
    • 100% coverage for commercial use
    • Extended price protection
    • No lemon guarantee
    • Free transfer of coverage to a new owner
    • Repair costs covered for up to five years from date of purchase
    • Repair authorization-toll-free by phone or via the web
    Customer Reviews
    Loading....

    Review Snapshot

    by PowerReviews
    BossTU-12EX Chromatic Tuner for Guitar & Bass
     
    4.6

    (based on 12 reviews)

    Ratings Distribution

    • 5 Stars

       

      (10)

    • 4 Stars

       

      (1)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (1)

    Most Liked Positive Review

     

    Precision Tuning

    I bought a BOSS 12H guitar tuner 12 years ago, it finally gave up the ghost last month & I am replacing it with the newest model of the exact same tuner. It...Read complete review

    I bought a BOSS 12H guitar tuner 12 years ago, it finally gave up the ghost last month & I am replacing it with the newest model of the exact same tuner. It absolutely always gave perfect tuning for electric or acoustic, would even tell you whether your voice was exact pitch; In fact we looked at an electronic keyboard to purchase, I checked it with my tuner & we did not buy it because it wasn't exact pitch. HINT: Buy the AC adapter, tuning is difficult w/ low battery.

    VS

    Most Liked Negative Review

     

    Avoid this product.

    I am a huge fan of Boss gear but this product should be avoided. It truly is garbage. Cheaply made. Tiny little display on needle gauge and believe it or not no backlighting...Read complete review

    I am a huge fan of Boss gear but this product should be avoided. It truly is garbage. Cheaply made. Tiny little display on needle gauge and believe it or not no backlighting of this gauge or top lighting for that matter. Like I said, I am a huge boss fan as you would see if you saw my pedal board but this is trash.

    Reviewed by 12 customers

    Displaying reviews 1-12

    Back to Top

    (22 of 30 customers found this review helpful)

     
    5.0

    Just Stay in Tune

    By TJackson

    from Vernal

    Comments about Boss TU-12EX Chromatic Tuner for Guitar & Bass:

    Very precise and awesome for acoustic too!! I bring it everywhere and I stay in tune always!!

    (8 of 8 customers found this review helpful)

     
    5.0

    Precision Tuning

    By David Catron

    from Onalaska, Wa.

    Comments about Boss TU-12EX Chromatic Tuner for Guitar & Bass:

    I bought a BOSS 12H guitar tuner 12 years ago, it finally gave up the ghost last month & I am replacing it with the newest model of the exact same tuner. It absolutely always gave perfect tuning for electric or acoustic, would even tell you whether your voice was exact pitch; In fact we looked at an electronic keyboard to purchase, I checked it with my tuner & we did not buy it because it wasn't exact pitch. HINT: Buy the AC adapter, tuning is difficult w/ low battery.

    (8 of 9 customers found this review helpful)

     
    5.0

    Tuning Trouble

    By Dan

    from mt.lk. terr. wa.

    Comments about Boss TU-12EX Chromatic Tuner for Guitar & Bass:

    I was having trouble tuning my 12 string down a full step with another tuner (very frustrating). It could not tune both G strings the same which made the guitar sound bad.. The Boss TU-12EX made easy work of it! Very percise and worth the extra money.........Thanks Boss

    (3 of 3 customers found this review helpful)

     
    5.0

    Excellent tuner

    By Roger

    from Portsmouth, NH

    About Me Experienced

    Pros

    • Easy To Use
    • Functional
    • Good Quality
    • Improves Sound

    Cons

      Best Uses

        Comments about Boss TU-12EX Chromatic Tuner for Guitar & Bass:

        Very accurate, especially good for setting intonation. An analog tuner will beat a digital one every time.

        (3 of 3 customers found this review helpful)

         
        5.0

        BOSS OF ALL TUNERS

        By steve branum

        from maynardville,tn

        Comments about Boss TU-12EX Chromatic Tuner for Guitar & Bass:

        i bought a boss t u 12,it is the best tuner i have ever used on bass guitar and i love the beep when you r in tune plus it is very easy to read and small enough to fit in my jazz case

        (3 of 4 customers found this review helpful)

         
        5.0

        TU-12EX is the best ones today at the Guitar Center today!!!!!.

        By FERNANDEZ SHAW

        from Chicago Illinois

        Comments about Boss TU-12EX Chromatic Tuner for Guitar & Bass:

        BOSS's TU-12EX chromatic tuner is made for guitars and basses, while the basses, while the TU-12BW is designed specifically for brass and wind instruments!. Each tuner features an internal mic!. The TU-12BW adds an external clip-on contact mic!; the TU-12EX has an instrument-in jack!.

        (1 of 1 customers found this review helpful)

         
        5.0

        best tuner shy of an oscilliscope

        By MARK

        from sacramento, ca

        Site Member

        Comments about Boss TU-12EX Chromatic Tuner for Guitar & Bass:

        This is my 2nd TU12 tuner. the last was so good, someone stole it! This is the only tuner I will use to perform set up of my stringed, fretted instruments. Spot on accuracy and very easy to use. If you can afford the price, buy this. It is not a cheap $25 tuner, but a rock solid device that will last a lifetime if you care for it and safeguard it against unauthorized liberation (theft). Buy it or be out of tune!!!

         
        1.0

        Avoid this product.

        By KEVIN

        from undisclosed

        See all my reviews

        Verified Buyer

        Comments about Boss TU-12EX Chromatic Tuner for Guitar & Bass:

        I am a huge fan of Boss gear but this product should be avoided. It truly is garbage. Cheaply made. Tiny little display on needle gauge and believe it or not no backlighting of this gauge or top lighting for that matter. Like I said, I am a huge boss fan as you would see if you saw my pedal board but this is trash.

         
        5.0

        Very happy with the accuracy and versatility

        By George

        from undisclosed

        See all my reviews

        Verified Buyer

        Comments about Boss TU-12EX Chromatic Tuner for Guitar & Bass:

        I had always used one of these back during my road days and it still works as good now.

         
        4.0

        I would by this product again and recommend it to my friends

        By George

        from undisclosed

        See all my reviews

        Verified Buyer

        Comments about Boss TU-12EX Chromatic Tuner for Guitar & Bass:

        It is very easy to use and very responsive, my only complaint is that the dial is not back lighted, but I can get by without it.

         
        5.0

        The great Boss tuner tradition lives on.

        By Phillip

        from undisclosed

        See all my reviews

        Verified Buyer

        Comments about Boss TU-12EX Chromatic Tuner for Guitar & Bass:

        This tuner allows you to check your tuning on the fly without killing the signal chain. It also 'still' fits in the BCB-60 pedal board case AND can be powered by the built in power source without needing a battery. I use it with the a bass pedal board rig!

         
        5.0

        Just as great as before!

        By Desert Sue

        from Tucson (& Ecuador)

        About Me Professional Musician

        Pros

        • Easy To Use
        • Functional
        • Good Quality
        • Had previous version & just as satisfied as befo
        • Improves Sound

        Cons

          Best Uses

          • Concerts
          • Practicing

          Comments about Boss TU-12EX Chromatic Tuner for Guitar & Bass:

          In our group we play many different string instruments. We had a older version and loved it, so I'm glad the new one is just as good as before!

          Displaying reviews 1-12

          Back to Top

          You are changing the Ship-To country.

          Our product catalog varies by country due to manufacturer restrictions. If you change the Ship-To country, some or all of the items in your cart may not ship to the new destination.